import java.util.Scanner;

public class Test {
    public static void main(String[] args) {
//        打印X形状的*
        Scanner scanner = new Scanner(System.in);
        System.out.println("请输入：");
        int n = scanner.nextInt();
        for (int i = 0; i < n; i++) {
            for (int j = 0; j < n; j++) {
                if (i ==j || i+j == n-1){
                    System.out.print("*");
                }
                else {
                    System.out.print(" ");
                }
            }

            System.out.println();/*换行*/
        }
    }
}
